Title :
Performance of a priority-based dynamic capacity allocation scheme for WATM systems
Author :
Babu, Thimma V J Ganesh ; Le-Ngoc, Tho ; Hayes, Jeremiah F.
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada
Abstract :
Performance of a priority-based dynamic capacity allocation suitable for WATM systems is presented. The scheduling of ATM cell transmission in each uplink TDMA frame is based on a priority scheme with priority given to real-time traffic over non-real-time traffic. Real-time traffic exceeding the uplink capacity is lost while non-real-time traffic that cannot be served is stored in a FIFO queue. An analytical model is developed to evaluate the cell loss ratio (CLR) of both real-time and non-real-time traffic. Aggregate voice, video and data traffic is modelled by three 2-state Markov-modulated Poisson processes (MMPPs). Analytical results for different system capacities and various traffic loads and scenarios are discussed
Keywords :
B-ISDN; Markov processes; Poisson distribution; asynchronous transfer mode; channel capacity; land mobile radio; modulation; packet radio networks; queueing theory; radio links; telecommunication traffic; time division multiple access; visual communication; 2-state Markov-modulated Poisson processes; ATM cell transmission scheduling; B-ISDN; FIFO queue; MMPP; TDMA frame; WATM systems; analytical model; cell loss ratio; data traffic; multimedia services; nonreal-time traffic; performance; priority-based dynamic capacity allocation; real-time traffic; system capacities; traffic loads; uplink capacity; voice traffic; Asynchronous transfer mode; Bandwidth; Bit rate; Downlink; Frequency; Media Access Protocol; Switches; Telecommunication traffic; Time division multiple access; Traffic control;
Conference_Titel :
Global Telecommunications Conference, 1998. GLOBECOM 1998. The Bridge to Global Integration. IEEE
Conference_Location :
Sydney,NSW
Print_ISBN :
0-7803-4984-9
DOI :
10.1109/GLOCOM.1998.775930
